4 Answers
4

I wrote a bookmarklet to help with this task. It's very crude and it works for me today, but I've only tested it briefly and only in Chrome. It calls some JavaScript functions in Trello directly so it's extremely likely that it will break when they update the site. Hopefully it works for you, but please don't use it if your data is critical in case it mangles it.

If you want to try it out, you can get the code from here. There's both a readable version, and a version suitable for copying into a bookmarklet. To use:

Go here, select the entire contents ("javascript:..." to "...%29%28%29%3B") and copy to the clipboard.

Create a new bookmark, call it something like "Trello - Add Many" and paste the contents from step 1 into the URL field for the bookmark.

Go to the Trello board you want to add items to and click the bookmark. An overlay should appear that will let you select the list you want to add cards to, and enter a number of new card titles -- one per line.

The overlay will disappear when you hit "Submit". If you want to get rid of the overlay without adding any new cards then just refresh the page.

Note: If you're trying to get your tasks out of Google Tasks and into Trello then choose Actions - Print task list in Google Tasks, copy the tasks from the printable view, and paste into the bookmarklet's entry box.